}
#endif
-/* Processing handlers for ipmr_forward */
+/* Processing handlers for ipmr_forward, under rcu_read_lock() */
static void ipmr_queue_xmit(struct net *net, struct mr_table *mrt,
int in_vifi, struct sk_buff *skb, int vifi)
WRITE_ONCE(vif->bytes_out, vif->bytes_out + skb->len);
vif_dev->stats.tx_bytes += skb->len;
vif_dev->stats.tx_packets++;
- rcu_read_lock();
ipmr_cache_report(mrt, skb, vifi, IGMPMSG_WHOLEPKT);
- rcu_read_unlock();
goto out_free;
}
}
/* "local" means that we should preserve one skb (for local delivery) */
+/* Called uner rcu_read_lock() */
static void ip_mr_forward(struct net *net, struct mr_table *mrt,
struct net_device *dev, struct sk_buff *skb,
struct mfc_cache *c, int local)
c->_c.mfc_un.res.last_assert +
MFC_ASSERT_THRESH)) {
c->_c.mfc_un.res.last_assert = jiffies;
- rcu_read_lock();
ipmr_cache_report(mrt, skb, true_vifi, IGMPMSG_WRONGVIF);
if (mrt->mroute_do_wrvifwhole)
ipmr_cache_report(mrt, skb, true_vifi,
IGMPMSG_WRVIFWHOLE);
- rcu_read_unlock();
}
goto dont_forward;
}
return -ENODEV;
}
- read_lock(&mrt_lock);
ip_mr_forward(net, mrt, dev, skb, cache, local);
- read_unlock(&mrt_lock);
if (local)
return ip_local_deliver(skb);